Suction cleaning-machine.



D. P. MOORE 6 s. B. PACK; SUCTION CLEANING MACHINE.

APPLICATION FILED JAN.27,1910.

986,403, Patented Mar. 7, 1911.

WITNESSES INVENTOR 6' I AMA UNITED STATES PATENT OFFICE.

nAvrn r. moons AND SAMUEL n. PACK, or wAsmnoroN, ms'rmc'r or coLUmBIA,ASSIGNORS 'ro rAcx'uonn MANUFACTURING qomrANY, A CORPORATION, or DELA-WARE.

' Specification of Letters Patent.

SUCTION CLEANING-MACHINE.

Paten'ted'Mar. '7, 1911.

' Application tiled January 27, 1910. Serial No. 540,391.

States, residing at Washington, in the District of Columbia, haveinvented certain new and. useful Improvements in Suct1onCleaning-Machines, of which the following is a specification, referencebeing had therein to'the accompanying drawing.

This invention relates to improvements in suction cleaning machines, andhas special reference to a new and improved form of suction head andself-adjusting attachment therefor, for use in such machines andespecially adapted for the forms of suction cleaning machines whereinthe body of the machine rests upon the"fl.oor, While the suction headrests independently of the machine though carried thereby. That is thesuction head is raised by the action of the irregularities of thesurface traversed and falls of its own weight to yielding-1y. cont-actor engage said surface. In other words, we provide a substantiallyvertical tubular sup port, which is attached to and in communi* cationwith the dust collecting casing of the machine, and has slidably androtatably connected thereto a suction head.- The suction head is therebypermitted to rest lightly upon the surface at all times and free fromthe weight of the machine, or pressure exerted thereon, and thus tosmoothly glide over the surface traversed, without in any mannerretarding the motion of the machine.

To clearly understand the details of the construction, attention isinvited to the accompanying drawings, in which Figure 1 is'a sideelevation of our suction head and its support, attached to the forwardportion of a dust collecting casing or machine. Fig. 2 is a topplan viewthereof.

Fig. 3 is a longitudinal section through the suction head and support online m-rc, Fig. 1. Fig. 4 is a similar view to Fig. 1 with the lower endof the suction head sup- Fi 5 is an enlarged detail view of the attaching device between the head and its tube.

Referringto the drawings :The numeral 1 designates the casing of anyform of portable suction clcaner, which as shown in our above mentionedapplications, is mounted upon wheels, and is adapted to remain in thesamerelative position tothe surface traversed. In order to permit this,the suction head or nozzle'2, must be mounted soas not to chock themachine and impede the free gliding motion of the machine. To do this,we provide-the suction head 2, which is preferably made of wood, such asmaple,

ash, hickory, mahogany, or other tough close grained woods, and provideit with-the central elongated slot or mouth 3, the walls 4, beinginclined or curved from the slot toward the front and rear of the headto permit the free gliding of the mouth over the carpet, floor or rug.

The mouth opens into the flaring chamber 5, which terminates in thecircular aperture or opening 6, for the removable reception of the shortcollar or sleeve 7, carried by the suction head carrying tube 8, whichis slidably and snugly fitted within the lower open end of thegoose-neck supporting pipe 9, which is secured to the casing by means ofthe plate 10. It will thus be seen that the tube 8, is allowed avertical sliding movement within the lower end of the pipe 9, and thenozzle will also be allowed a swinging movement at each end toward andaway from the casing with the tube 8, as a central point or axis, as perdotted lines Fig. 2. We have found by ractice that the rotary action ofthe tube, assists greatly in the sliding motion between the parts, itbeing demonstrated that it is easier to move the tube within the pipe bythis action than by a straight up and down movement, and we thereforepreferto permit this action, which will automaticallybe caused by themovement of the machine as the suction head is pushed or pulled over thesurface.

In order to permit the use of various width nozzles .or suction heads,we provide each head with the series of studs or headed pins 11, whichare adapted to seat. within the hooks 12, carried by the flange 13 ofthe tube 8, it simply being necessary to turn the tube 8 until the pinsor studs are beyond the ends a of the hooks ,at which time the sleeve 7may be withdrawn from the head or nozzle, and another nozzle or headsubstituted.

itself upon the surface traversed of its own weight, or by gravity, weemploy the catch 14, which is carried by the tube 8 and is pro-,

vided with the stop 15, which rests upon the inner face of the pipe 9,and is prevented from falling too far by means of the stud or stolp 16,formed upon the pipe 9.

will thus be seen that we provide a selfadjusting suction head andsupport, which will permit the suction head of its own wei. ht to falland accommodate itself to the sur ace traversed, or be raised by saidsurface traversed, this action being automatically accomplished as thesuction cleaning.

machine is moved to and fro over the surface.

What we claim, as new is ,1. The combination with a portable suctioncreating device of a suction head carried by the same, and a connectionbetween the device and the suction head consisting of two tubes, one ofsaid tubes leading from the device and the other from the suction head,the said tubes forming a guiding and telescoping eonnection to presentthe mouth of thesuction head at all times to the surface being cleaned,and permit elevations in-the surface traversed to impart an upwardmovement to the suction head.

2. The combination with a portable suetion creating device, of a suctionhead carried. by the same, and a connectionbetween the device and thesuction head, consisting of two tubes,'one of the tubes leading from thedevice and the other from the suction head, and one of the tubesslidingly and roto and slidably and rotatably connected with said 'pipe.

4. vThe combination with'a portable sue.

tion creating device, of a vertical downwardly opening pipe rigidlyconnected to the suction creating device, a suction head provided with atube rigidly connected thereto and slidably and rotatably connected withsaid pipe, and means for limiting the rotary movement of the suctionhead.

In testimony whereof we aflix our signatures in presence of twowitnesses.

DAVID P. MOORE. SAMUEL-B. PACK.

Witnesses:

A. M. PARKms, Cannon. Emma.-

